Juniper Junos Space JA1500, Руководство по оборудованию

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Replacing the Fan on a Junos Space Appliance
The Junos Space appliance ships with two field-replaceable fans that are hot-swappable.
You can remove and replace a fan without powering off the appliance or disrupting any
functions.
When a fan fails, the full cooling load switches to the remaining fan and the red Hardware
Fault LED on the front panel of the appliance blinks and an alarm sounds.
NOTE: The LEDs on the front panel of the JA2500 are arranged vertically, as
shown in Figure 19 on page 133 .
Figure 19: JA2500 Appliance Front Panel Status LEDs
3— 1— Hardware Fault LED Power LED
2—Hard Disk Activity LED
CAUTION: The Junos Space appliance should not run on one fan for an
extended period of time. Failed fans should be replaced as soon as possible.
Ensure that you have the following parts and tools available to remove the fan from the
appliance chassis:
• (Optional) Electrostatic discharge (ESD) grounding strap
• (Optional) An antistatic bag or an antistatic mat
•
Removing the Fan on page 133
•
Installing the Fan on page 134
Removing the Fan
To remove a fan from a Junos Space appliance, do the following:
1.
(Optional) Place the antistatic bag or antistatic mat on a flat, stable surface.
2.
(Optional) Attach an ESD grounding strap to your bare wrist, and connect the strap
to an external ESD point.
3.
Press the latch at the side of the fan, as shown Figure 20 on page 134 to release the
fan.
133 Copyright © 2018, Juniper Networks, Inc.
Chapter 11: Replacing Hardware Components